Expanded-metal machine.



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mmm@ mm3 Mmmm APPLIATIOE FLED FEB. E9, 1905.

EE SEEETISMZEEET Ei.

Myzggf @fm/@m mi' R. HOLDING. EXPANDED METAL MACHINE.

ANIMATION FILED FBBLlQ, 190s.4

Patented Mai. 22, E91@ 2 SHEETS-SHEET 2.

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'n-V 4.6. A i7 if@ f/ /f/ (E @lim 1:. pff@ 2f? kll l l f )s -A L I kvTo au whom 'a nois, have invented certain new Improvements 1n Expanded- .armar lanion.

ROBERT HOLDING, o F cnIoAGfo, ILLrNors, .AssIGNoR F Volvnnaitr 'ro Josine THOMPSON, oF CHICAGO, ILLNoIs.

' EXPAIUDED-METAL MACHIN E.

Application led February 19, 1906.

`Specification of Letters Patent.

Patented Mar. 22, ww. .serial No. 301,767.

` may concern: Be it known that I, ROBERT HOLDING, a citizen of the United States, residing at Chicago, county of Cook, and State of Illi- Metal Machinesfof which the following is a full, clear, and exact speciiication.

'This invention' relates to machines for slitting and expanding sheet-metal, principally forv the purpose of producing a in which the or cutterto construction,

trellis-like structure, commonly employed as a substitute for laths, and other uses, and the linvent-ion is especially 'designed as an improvement upon the character of machine for accomplishing metal is slitted and the strands expanded or spread apart by a'plurality of knives or4 shearingpmembers, cooperating with a com'n pamon member usually arranged att-he edge ofthe table which supports the sheet dui-in the operation, as, for example, themachine shown in the patent to J F.- Golding, No. 581,7l3,granted May 4, 1897; and the ins vent-ion has for its primary'object to' pro-1 vide an improved machine of this character, in which the spring away from its companionme'mber, due to the resistance of the metal, will be neutralized or ove'rcome by. such resistance. Anotherobjectof the invention 4is toprovide an im'proved expanded 'metal machine cutters may be readily replaced 'in their proper position'safter' without the necessity of the fine adjustment heretofore required.

lVith these ends lin view, the invention consists in the -combination, andv *arrangement of-parts by which said objects, and certain other objects hereinafter appearing, are attained, all as fully described with ref-4 a side elevation, partly inlvertical section, ofthe cutters, the 'supporting table, and the sheet. of metal therein-between. Fig. 4 is an enlarged detail vertical section taken on the line of Fig. 3. Fig. 5 lis a perspective this Work, in Which the' tendency of the shearing blade being ground,`

particularly pointed out in the claims.v

i l s features .of novelty in the .View ofone of the cutters.'

shoulder l2, and these And Fig. 6 is a detail perspective View of the cutter lug or clam In the aforesaid Golding machine, a single and useful sheet of met-al at atime is acted upon by the knives or cutters, which are ing and falling and are operatively related to a companion shear arranged along the edge of the table which supports the sheet, and in practice it is found that the ,resista-nce of the sheet causes the movable cutters, or those carried by the cross-head, to spring away from the companion shear or member on the edge of the' table, especially yafter vthey become slightly ,worn or dulled from use.I In order to overcome this objectionable yieldingmovement of the cooperating membersl of the cutters, vI operate neously, bymeans of two sets'of movable cutters 3', 4, which are situated between their companion cutters or members 5, 6, respectively, so that the resistance of one sheet will neutralize or overcome the resistance of the other sheet, thereby Aalso neutralizing an Y tendency of the cutter-head 7, Vwhich carries the cutters 3, 4, tomove in either direction. The companion cutters 5, 6, are mounted rigidly upon., the ina-'in frame or table 8, which supports the sheets 9, 10, and conseq'uently said cutters 5, 6, are held firmly in position during the cutting operation. .As

carried on a risbet-tershown in Fig. l, the main 'frame orl table-is formed with a recess 11 for the accommodation of the sheets after they have been cut and expanded, and below this recess the side portions of the frame or table are firmly connected together.

The movable cross-head, 'or cutter-head, 7, which carries the `cutters 8, 4, is provided on each side .with a depending flange' or have their inner or opposed faces accurately machined or formed' in' line with the operative faces of the lower cutters onshears 5, G, so that the .inner 'facesof said flanges andshears will lie in the same perpendicular plane, and the cutters 3, 4, are composed .of movable blocks or sections, as shown 1n Fig. 5, which are of box-like formation, each having two le'gs or branches 13, 14, and a V-shaped cutting end '15,- Wlnch engages the metal and produces the necessary expansion as 1t forms the slit which-producesthe strand. The outer faces these box-like cutting members 3, 4, are v cross-head or cutter-bzw,A

upon two sheets l, 2, simulta` dors l2 the will 'alvva s be in accuretei n r 1 f alinement. with toe louer .cui-tet= members 5, (l, und may be ground at will Without distulbing this relation, 1t only being' necessary to' exercise, care in grinding tbe outer edgesor 'laces of the cut-ter members 3, Ll, so that they quently, when placed against tbe shoulders l2, they willv be in tbe same perpendicular plane es the inner face of tbe lower cutter member. 'ln order that these cutter men1- bers 3, l, may be tjigidlyclamped and. held in place, tlieyare supported at their upper edges directly against the lower side ot' the cutter-bead 7, which of course holds tbem against upward movement relative to the cuttciiiead, and they are supported against one anotheii' as shown in Fig. 3, Wbicb holds them against lateral motion, While they are held snugly against tbe flange or shoulder- 12 by any suitable clamp, such as shown in Fig. G, comprising u bead or flange-lndlich tits against their inner sides, und a stud or bolt 17 which passes through the shoulder l2 und is provided viitb a nut 18 arranged. against tbe outer tace of the shoulder, tbese heads Ai6-bem@ of a shape complementary to tbe cutter members 8, 4t, so that tbey Will bold each other against rotation. Eil-cb of tbc cutter members 3, fl, is rioldlyl held against movement in a direction away from tbeir companion members 5, 6, by any suitable abutment, sucb as a set-screw "i9 sere-W- tbreaded in a depending` portion 2d, otsubstantiel proportions, formed on the lower side of tbe cutterbead 7, tbe set-screws 19 being preferably situated neat the lower ends or points of the cutters 3, fl, 'Where tbestrain is greatest,

,'lbe lo'wer cutter members 5, 6, are peet erably separate from the table, so tiiet they may be teiten out for grinding, und in order to minimise the surface thereof to be ground, tbey are preferably channel-bers, tbus reducing their operative faces While affording the requisite stiengtb.

These. are held up to their Work and ae-v curately adjusted by set-screvvs 2l, 522, or any other suitable means, screW-tbreaded in shoulders 23, 24, constituted by recesses 2o,

' 2G, in the surface ot tbe table, and in which recesses are situated abutment blocks Q7, 28,

arran ed aesinet tbe cutters 6, and forms U l l ing a substantiel backing tbei'eiior, and also receiving the pressure of tbe set screws ei, es. f

1With e seen ,that produced macliine thus described., it will tivo sbeets oil expanded metal a simu?taneously, one series ci? i.

'sbeet being tetu-tied e f.,

will lie in the seme piane, and conse,

made in tbe 'form oi' like forma on stroke ot tbe cutter-bead 7, wbicii may be provide@ with Atbe usual ci any suitable mesns for giving it tbe desired rising and felling movement, as, toi" example, tbe means shown and desctibed in tbe said Golding; patent.

ln e machine ot tbe character described, tbe combination of two spaced stationary cutters adjustable toward'and away from each other, a cutter bead movable between said spaced cutters, seid cutter bead being provided Witb spaced abutment shoulders and Wit-li a rigid projecting,` portion intermediateto said shoulders, and cutters rigidly mounted between said shoulders and rigid projection, said cutters being cooperatively arranged with respect to the stationary cutters.

Q9. ln a machine of tbe character described,

tbe combination olf two spaced stationery cutters parellelly arranged and adjustable 'toward and away from eachother, a cutter bead movable between said. spaced cutters, said cutter bead being provided with spaced abutment shoulders and Wit-b a rigid projecting portion intermediate to, said sboul ders, cuttersV removably mounted on said shoulders, and a rigid abutment between each ot said cutters portion, said cutters being' cooperatively arranged with respect to the stationary cutters v 3. ln a machine of the character described, tbe combination of two spaced stationary cutters parallelly laterally toward and away fiom each other, a cutter bead movable between said spaced' cutters, said cutter bead being provided with spaced abutment shoulders and with a igid projecting portion intermediate 'to said shoulders, and `cutters iemovebly `mounted on said cutter bead, seid cutters being in abutment with seid. abutment shoulders 're-' spectively whereby tbe cutting edges of tbe movable 'cutters ere. maintained in substantially the same planes 'with tbe cutting edges 'oi the stationary cutters.

- ln an expanded metal machine, tbe combination of a cuttenbead, a cutter ci a box-like "formation, en abutment-slioulder cerried by tbe eutter-bea'd, and against 'which a plurality ci tbe edges of said boxbear, companion cutter 'alined with seid edges and' tbe contiguous face oit said shoulder, aritdmeens'tor clampsaid bouillie cutter in piecen ln expanded metel machine, tbe ceinbinetlou or? cutterneael neming 'su cutter swing; if vitality o n L.eid simi de?, a bolt be keb ould l rfi-li te Lorand rigid projecting arrangedl end adjustable scribed, the combination of tWo spaced stawith spaced abutment shoulders 'a lcutter head movable between asaeaa place, and a companion cutter alined with the edge of said shoulder and the contiguous "edges o f the first said cutter.

6'. Inan expanded metal machine, the combination of a cutter-head provided with an abutment-shoulder, a U-shaped cutter having 'its branches bearing under and against said head andthe edgesf'of its branches bearing against means for1 clamping said cutter in place, and a companion cutter alined with the faces of the shoulder and first said cutter that are in contact. y

In an expanded metal machine, the combination of a Cutterhead, a plurality of separate'U-shaped cutters-arranged in a line on said head in contact with each other,l'sep- 'arate means for clamping said cutters 1n position, anda companion cutter arranged to cooperate withl said cutters.

8. In an expanded metal machine, the.'

combination of a cutter-head, al box-like cutter 'supported thereon,. la bolt passing through said cutterand having a head overlapping the edges thereof, a'shoulder car'- yried by the cutte'rrheadfor the attachment of the other endof the p bolt and against which shoulder the cutters bear, and -a companion cutter alinedwith said shoulder and coperatively related to the first said cutter.

9. In a machine of the characterdescribed, the combination of a pair of spaced stationary cutters, a movable cutter head provided with oppositely -disposed abutment shoulders and a rigid projecting portion intermediateito and spacedfrom the said shoulders,

cutters rigidlymounted on said shoulders, and an abutment vinterposed ,between said projecting portion and each of said cutters.

l0. In a' machine of the'character detionary cutters parallelly arranged and adjustable toward and 'away from each other, .said spaced cutters, said cutter head` being provided rigid projecting portion intermediate to said shoulders, cutters rigidly mounted on said shoulders, an adjustable abutment adapted to provide a rigid support between each cut-I ter` and said rigid projecting portion of the movablecutter hea-d, said cutters being co- -operatively arranged With-respect to the stationary cutters.

said shoulder,

and with a 12. Ina machine of the character de' scribed, the combination of a pair of spaced stationary cutters having inwardly presented faces in' parallel planes, a movable cutter head intermediate to said stationair cutters, said cutter head being provided withl Shoulder abutments arranged respectivelyl in substantially the same planes as the respective inner 'faces of the stationary cutters,

and with an integral projecting .portion intermediate of said shouldcrs,'cutters mounted on said shoulders with outwardly pre,- sented faces in the planes of the respective inner faces of the stationary cutters, and

means adj ustably mounted in said projectingportion for forming an abutment between each cutter and said portion.

413. In a machine of the 4 character described, the combination of a pair of spaced stationary cutters'having parallel inwardly presented faces,'.a movable cutterhead in- `termediate to sald cutters, agpair ofremovable cutters mounted on the cutter head to coperate with the stationary cutters, and means interengaging between the cutter head and the outwardly presented faces of the Icutters mounted thereon whereby these cutters are'adapted to vbe mounted on the cutter head with said outwardly presented faces' 1n substantially the same planes as the respective 'inwardly presented faces of the stationary cutters.

In testimony two subscribing Witnesses, -on thisv 16th day .ofFebr'uary A. D. 1906.

ROBERT HOLDING.

Witnesses FRANCIS A. HOPKINS,

Crus-H. SEEM.

g whereof'I have signed'my name to this specication, in the' presence of. 

